The sudden expansion led Matt Lauer to joke that TODAY was “taking over morning television, one new viewer at a time.”

Dylan Dreyer and her husband, Brian Fichera, pose with their bundle of joy shortly after his birth.

Dylan, 35, went on to share the experiences of her first pregnancy with the TODAY audience through a video diary that chronicled everything from how she was "hungry all the time" to her random moments of nervousness and panic over how much her life was about to change.

Calvin's dad said that the baby boy was doing "amazing" shortly after his birth.

But she also discussed one of the downsides to being pregnant, particularly for someone who works in a very public job: The sharp fashion critiques on social media.

Calvin enjoys a nap amid all the excitement.

"People let me know if it's a hit or a miss," said Dylan from a video diary entry recorded inside her closet. “And trust me when it's a miss it actually upsets me a little bit if you don't like what I'm wearing, because I'm trying my best here."

In September, Dylan got turned into a social experiment guinea pig. One day after pregnant actress Olivia Wilde shamed subway passengers for failing to give up a seat for her, TODAY sent Dylan to the New York subways to see if strangers would show their chivalry. (They did!)

We can't get enough of little Calvin!

Throughout it all, Dylan's colleagues applauded her for the honesty she displayed when discussing both her fears and excitement throughout her pregnancy. It helped to have a strong partner by her side. Dylan met Brian when the two worked the morning shift at WDHH, the NBC affiliate in Boston. They got married in October 2012.

"We weren’t in a rush to have kids and, to be honest, there was a time when we declared we never wanted kids!" she wrote in a TODAY blog post. "Then one day we both looked at each other and said 'I want a baby!' As usual, we were on the same page and it all just seemed right."